const mysql = require("mysql");

var con = mysql.createConnection({
    host:'192.168.168.144',
    port:'3306',
    user:'root',
    password:'ddd',
    database:'mydatabase'
})

var userName=process.argv[2];

var deleteSql = "delete from users where userName=?";
con.query(deleteSql,[userName],(err,result)=>{
    if(err){
        console.log(err);
    }
    else{
        console.log(result);
    }
})